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Arsip:
Research and Innovation
Let us imagine a puppeteer controlling string puppets or marionettes. Let us imagine how the puppeteer’s fingers, through strings invisible to the audience, make the puppets move and dance on the stage. The twist? Our puppeteer is not playing puppets: What we find at the ends of the strings is a cloud–or, at least, an interpretation of clouds at best. Using fingers, the puppeteer is trying to imitate how clouds always move and change, wandering the sky with appearances which can never be same at every step.
Journal title : Investigation into the daylight performance of expanded-metal shading through parametric design and multi-objective optimisation in Japan
Author : Rendy Perdana Khidmat, Hiroatsu Fukuda, Kustiani, Beta Paramita, Ma Qingsong, Agus Hariyadi
Accepted July Received 1 November 2021; Received in revised form 3 February 2022; Accepted 15 February 2022. Journal of Building Engineering 51 (2022)
https://doi.org/10.1016/j.jobe.2022.104241
Abstract :
This paper presents a parametric and Multi-Objective Optimisation approach to investigate daylight performance of the expanded-metal shading depicting the sky conditions in Kitakyushu, Japan. The study is an initial design method utilising a robust computational calculation aiming to verify expanded metal as an environmentally friendly building material concerning its function as a shading device. The proposed platform generatively iterates the logic of expanded metal as dynamic design variables, such as Bond, Strand, Length, Height and Angle, to achieve the optimisation goals of minimising Annual Sunlight Exposure (ASE) while simultaneously maximising Spatial Daylight Autonomy, Useful Daylight Illuminance (UDI) and the openness of the expanded metal profile. Ladybug and Honeybee were utilised in a parametric platform, Grasshopper, to perform daylight simulation, while Octopus was employed to optimise the results. A thorough analysis was conducted to determine the significance of each expanded-metal parameter in achieving the daylight and View objectives. The results showed that adopting the proposed framework successfully fulfilled the LEED v4.1 daylight requirements by reducing ASE by 100% and improving UDI by approximately 50% over the baseline model. Furthermore, the iteration process revealed a wide range of aesthetic patterns, providing another factor for designers to consider during the design decision-making process.
Pada hibah penelitian dosen muda UGM tahun 2021, telah dilakukan penelitian mengenai hubungan sistem eksoskeleton pada bangunan tinggi terhadap visual interest di dalam ruangan. Adapun rangkuman dari hasil simulasi dan penelitian tersebut adalah sebagai berikut :
Abstrak :
Isu keterbatasan lahan, terutama pada daerah kepadatan tinggi, mendorong munculnya banyakpembangunan bangunan tinggi (highrise) untuk pemenuhan kebutuhan ruang. Biaya pembangunan yang mahal, lahan yang sempit, serta tuntutan kebutuhan ruang yang tinggi menyebabkan nilai atas setiap jengkal ruang dalam dan visual akses antar ruang yang ada menjadi sangat tinggi. Struktur konvensional dengan susunan kolom diinternal menjadi tidak menguntungkan.Maka dari itu, eksoskeleton muncul menjadi mode perancangan struktur alternatif yang popular. Dengan meminimalisir kolom struktural di dalam bangunan, eksoskleton memberikan peluang untuk memaksimalkan penggunaan floor area ruang internal, menghadirkan estetika eksternal fasad bangunan, dan meningkatkan performa bangunan melalui elemen fasad apabila dapat diprogram sesuai kebutuhan. Meskipun demikian, diluar berbagai potensi positif tersebut, ada sebuah aspek yang kerap terabaikan, yaitu kualitas visual dan pencahayaan ruang dalam kaitannya dengan penempatan elemen struktural diluar bangunan tersebut.
Journal title : Effectiveness of adaptive façade with helicon mechanisms on energy values and natural lighting in Indonesia
Author : Aldhi Nugraha Anantama, Agus Hariyadi
Accepted July 04, 2021. Available online December 01, 2021. ARTEKS : Jurnal Teknik Arsitektur, Volume 6 Issue 3, December 2021 https://doi.org/10.30822/arteks.v6i3.1071Abstract :
The annual growth of energy consumption in both residential and public buildings has been established globally as been significantly increasing. Therefore, the proposed active and passive building designs are intended to provide convenience and greatly reduce the high energy requirements, before considering mechanical systems (associated with fossil fuel-based energy consumption). This encourages the development of a new design, such as the Climate Adaptive Building Shell (CABS). This study aims to assess the effectiveness of CABS with Helicone mechanisms on energy and natural lighting, as well as its influential factors. The parametric modeling simulation method was applied to compare the energy and natural lighting aspects, between the adaptive and static facades of the Helicone mechanism. The results indicated that the adaptive facade was more effective than the static, based on energy and natural lighting. It was also found that the 30° adaptive configuration with the Helicone mechanism was the most effective. These results were influenced by several factors, i.e., the small turning angle (30° and 150° (-30°) and the anticlockwise direction of the adaptive facade rotation.
Model prototipe Hive Responsive Wall berukuran 64 cm x 6,5 cm x 48,75 cm, dengan total 18 modul heksagonal (red: Hive) bersama dengan bilah-bilah melingkar ganda. Maket model dibuat dengan memanfaatkan 3D printer dan menggunakan bahan PLA+. Setial Hive menggunakan sambungan takik (kunci melingkar) untuk menjaga setiap modul tetap di tempatnya. Sedangkan untuk gerakan responsif, tiga servo dipasang pada box servo, yang ditempatkan pada setiap tiga modul Hive, untuk melakukan gerakan melingkar pada setiap slat. Selanjutnya, sensor iluminansi dipasang pada setiap motor servo untuk memeriksa iluminasi. Sensor ini juga yang kemudian memberikan sinyal input untuk servo. Data illuminasi yang ditangkap oleh sensor dikirimkan ke multiplexer yang memiliki 16 channels. Arduino akan memproses data ini, kemudian mengirimkan sinyal kepada servo untuk menggerakkannya sesuai pemetaan dan pemrograman yang telah disiapkan sebelumnya.
Journal title : A Modular Interlocking Element for Material-Efficient Stereotomy Construction
Author : Nabila Affif, Nur Zahrotunnisaa Zagi, Agus Hariyadi, Annisa P. Cinderakasih
Accepted at August 20, 2021. Published online at Nexus Network Journal, September 17, 2021
https://doi.org/10.1007/s00004-021-00577-6
Abstract :
In the last decade, research interest in digital stereotomy has been renewed, with efficiency as a popular objective. However, along with a mainstream focus on full customization, comes a paradox of efficient design yet inefficient fabrication. Provoked by this situation, the potential of modular stereotomy is explored here. By utilizing a parametric design approach and rapid additive prototyping method, sequential experiments were executed to test seventy variations of units. As a result, a clear workflow and an optimized design were generated and used to form a modular stereotomy construction. Finally, efficiency was achieved from three standpoints: main material efficiency through complete modularity, supporting material efficiency through total elimination of shims and up to 91% reduction in falsework, and material use-value maximization through an easy assembly of form and a selection of up to six different constructional strategies to build arches with similar shape and volume.
Seperti pada kerai kinetik otomatis lainnya, tindakan meningkatkan kinerja bangunan dengan mempersempit fenestrasi berdampak pada penurunan kenyamanan visual dalam ruangan. Secara hipotetis, visibilitas dalam ruangan dapat ditingkatkan dengan terus-menerus menggerakkan tirai, sambil tetap mempertahankan konsumsi energi bangunan. Jenis pengembangan Sudare ini disebut Buzzing Sudare.
Model prototipe Buzzing Sudare berisi model ruangan dengan ukuran 28,5 cm x 19 cm x 22,5 cm, dengan WWR 100% dan satu lapis Sudare. Maket model terbuat dari papan multipleks dan menggunakan sistem knock down dan kuncian untuk menghubungkan setiap sisi horizontal dan vertikal. Selain itu, kamera web dipasang di dalam model fisik ini untuk melihat visibilitas dalam ruangan. Sensor cahaya dipasang pada dudukan yang dicetak dengan mesin 3D print dan dipasang di lantai dan atap dengan jumlah total 16 titik. Sensor cahaya ini dipergunakan untuk mengumpulkan distribusi daylight illuminance. Sensor ini terhubung ke multiplexer logger dengan 16 saluran. Data daylight illuminance tersebut kemudian diolah di Arduino dan dibaca dengan Fireflfly di Grasshopper.
Journal title: The Comparison of Device Material of Sliding Sudare Using a Prototyping Method
Author: Agus Hariyadi, Esti Setyaning Jati, Nabila Afif, Alya Farah Taufiqoh
Accepted October 11, 2020. Available online April 01, 2021. ARTEKS : Jurnal Teknik Arsitektur, Volume 6 Issue 1, April 2021.
https://doi: 10.30822/arteks.v6i1.569
Abstract:
Sliding Sudare has a big potential to be developed considered its high effectiveness in minimizing building energy consumption while still maintaining its visibility quality. Meanwhile, its original blinds that is made of bamboo cannot withstand extreme weather and have a short lifespan. Therefore, this research is to investigate the effectiveness of the other material alternatives namely stainless steel, plastic, and natural fiber. A scaled model is used for prototyping the materials in the shape of bicycle spokes, PLA+ (3D printer filament), and bamboo slats as the blinds. These everyday objects were tested in terms of their physical characteristic and were measured by four parameters (security requirement, weather resistance, construction process, and cost-effectiveness). From the research, it was concluded that bicycle spokes has the highest overall performance with the highest advantages in weather resistance requirement, cost-effectiveness, and construction; whilst PLA+ and bamboo slats have the least overall performance though both have high advantage in terms of security requirement.
Conference paper title: Parametric Roster Concrete Brick Modules as External Shading Device to Maximize Indoor Visual Comfort
Author: Safira Yumna Salsabila, Agus Hariyadi, Nabila Afif, Annisa P. Cinderakasih
Presented on: International Conference on Less is MOji-REboot the City, Japan. Fukuoka-Kitakyushu, Japan
Abstract :
Many buildings in tropical regions with abundant sunlight still fail to make effective use of daylight. Building designs often use additional shading as an improvisation because of unintentional daylight and glare considerations since the design process. One of the additional elements that are commonly used in the tropical regions is roster concrete brick. There are several physical parameters that were taken into consideration when determining the level of visual comfort of an enclosed space. There are three criteria that are utilized as determining factors in assessing the room visual comfort level, namely (1) material, (2) colour, and (3) degree of open capacity. This research aims to explore the most effective type of among four different modular roster type configuration using digital simulation. Single-space study model was analyzed using computer simulation using grasshoper for rhino software. Analysis of the findings indicated that shading devices with different configurations show significant results in the visual comfort; and the most effective configuration is external shading devices with 10,2% open degree opacity. This study recommends that the consideration for shading device as a passive design strategy needs to be developed at the early stage of the building design.